Advances in Manufacturing最新文献

{"title":"Constitutive model and strengthening and ductility mechanisms of Ti6554 alloy with caliber rolled microstructure during cryogenic tension","authors":"Chuan Wu,&nbsp;Chuan-Kun Liu,&nbsp;Bao-Xi Liu","doi":"10.1007/s40436-025-00579-4","DOIUrl":"10.1007/s40436-025-00579-4","url":null,"abstract":"<div><p>To elucidate the cryogenic deformation behavior and its effect on microstructural evolution on the mechanical properties of titanium alloys, this study selects the Ti-6Cr-5Mo-5V-4Al (Ti6554) alloy as the research object, carrying out cryogenic tensile and impact tests, to obtain the stress strain curves and mechanical indicators and develop a modified Johnson Cook constitutive model. Scanning electron microscope (SEM), electron backscattered diffraction (EBSD) and transmission electron microscope (TEM) are utilized to analyze the morphological evolution, fracture mechanism, texture components, Schimidt factor (SF), and grain orientation spread (GOS). The results indicate that the {0001}&lt;11-20&gt; slip system remains activated for the <i>α</i> while these {110}&lt;111&gt;, {112}&lt;111&gt;, and {123}&lt;111&gt; systems remain the primary deforming components at lower temperatures. The increase of critical resolved shear stress (CRSS), extensive pile-up of dislocations, and geometrically necessary dislocations (GNDs) resulted from the inhomogeneous deformation can improve strength, while deterioration of ductility may be caused by the reduced number of activated slip systems and retarded dislocation mobility, incompatible deformation between the <i>α</i> and <i>β</i> phases, and dislocation accumulation and stress concentration. This work can provide a deep insight into understanding deformation behaviors and microstructural mechanism of Ti6554 alloy subjected to low-temperature tension.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 3","pages":"747 - 773"},"PeriodicalIF":3.9,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quasi-in-situ cross wedge rolling study on the evolution of internal defects of GH2132 superalloy","authors":"Zan Yang,&nbsp;Jia-Xu Liu,&nbsp;Ming-Jie Shi,&nbsp;Shi-Hong Zhang,&nbsp;Ming Chen,&nbsp;Ming Cheng","doi":"10.1007/s40436-025-00587-4","DOIUrl":"10.1007/s40436-025-00587-4","url":null,"abstract":"<div><p>Internal defect is a general problem in cross wedge rolling, which usually diminishes mechanical properties and even leads to the failure of rolled workpieces. In this study, variation of characteristics (stress state, strain path, etc.) in rolled workpieces during deformation was investigated through numerical simulation. Then, microstructural evolution of internal defects was clarified by quasi-in-situ experiments. Finally, process parameter intervals forming rolled workpieces with internal defect-free and good mechanical properties were confirmed. Results show that rolled workpieces with good surface quality can be produced although they experience complex strain paths and stress states during deformation. Further, quasi-in-situ experiments revealed that evolution process of internal defects. Namely, defect nucleates at interface between inclusion and matrix, and grows into a micro-pore. As section shrinkage increases, micro-pores gradually expand and coalesce, forming larger micro-holes and potentially leading to macro-cracks. Among them, propagation process is accelerated by fine carbide particles served as expansion channels. In addition, rolled workpieces with good internal and external quality can be formed at a heating temperature of 970–1 020 °C and a rolling velocity of 400 mm/s. Specially, area proportion of defects was counted quantitatively to characterize damage degree. At a fixed velocity of 400 mm/s, as temperature increased from 950 °C to 1 050 °C, area proportion changed from 1.4% (950 °C) to 1.1% (1 000 °C) and 1.3% (1 050 °C). When temperature is settled at 1 000 °C, changes in velocity (300–500 mm/s) can also cause similar trends in area fraction variations. Consequently, rolled workpiece obtained through process optimization can provide a 5.1% increase in tensile strength while maintaining hardness of central region.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 3","pages":"620 - 638"},"PeriodicalIF":3.9,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Properties of cutting force, surface roughness and waviness in diamond wire sawing marble","authors":"Fan Cui,&nbsp;Yu-Fei Gao,&nbsp;Da-Meng Cheng,&nbsp;Hong-Hao Li","doi":"10.1007/s40436-025-00581-w","DOIUrl":"10.1007/s40436-025-00581-w","url":null,"abstract":"<div><p>Marble is a typical hard and brittle material, widely used in construction, home decoration, and other fields due to its high strength, hardness, and excellent wear resistance. Diamond wire sawing is an innovative technology applied in the stone cutting industry, significantly reducing processing noise and kerf width, minimizing material cutting loss, and lowering dust pollution, thereby promoting the green development of the industry. This study conducted both single-factor and orthogonal experiments on the diamond wire sawing of marble to investigate the influences of workpiece feed speed, diamond wire speed, and cut workpiece length on cutting force, surface roughness, and waviness. The results showed that as the workpiece feed speed and cut workpiece length increased, diamond wire speed decreased; the cutting force increased; and the size and number of brittle pits and cracks on the cut surface increased, leading to a gradual increase in surface roughness and waviness. The influence of each factor on cutting force, roughness, and waviness ranked from the largest to the smallest as follows: workpiece feed speed, cut workpiece length and diamond wire speed. The findings provide experimental evidence for understanding the diamond wire sawing process of marble.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 3","pages":"674 - 696"},"PeriodicalIF":3.9,"publicationDate":"2026-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanisms behind the formation of microstructural defects in powder bed fusion processes: a review","authors":"Jasper Ramon,&nbsp;Gulshan Kumar,&nbsp;Ivan Cole,&nbsp;Hua Qian Ang","doi":"10.1007/s40436-025-00585-6","DOIUrl":"10.1007/s40436-025-00585-6","url":null,"abstract":"<div><p>Powder bed fusion (PBF) is a leading metal additive manufacturing technique capable of producing complex, high-precision components with superior material efficiency. However, the technology’s widespread adoption is limited by the presence of microstructural defects such as porosity, cracks, and textured columnar grains. These defects, originating from both feedstock characteristics and process instabilities, significantly undermine the structural integrity, fatigue resistance, and reliability of manufactured parts. To systematically address these challenges, this review classifies microstructural defects into feedstock-induced and process-induced categories, examining their formation mechanisms and impact on mechanical properties. Feedstock-induced defects, including satellite formation, internal porosity, and surface contamination, stem from irregularities in feedstock morphology and handling conditions. Process-induced defects, such as lack of fusion pores, keyhole porosity, and cracking, are strongly correlated to thermal gradients, melt pool dynamics, and energy density variations. Furthermore, this work examines defect mitigation strategies, including feedstock optimization (powder atomization, particle morphology control), process parameter refinement (energy density regulation, scan strategy optimization), and post-processing techniques (hot isostatic pressing, surface treatments). A summarized classification of defects, their mechanisms, effects on mechanical properties, and mitigation strategies is provided as a comprehensive reference for researchers and practitioners. Through the integration of experimental findings, multi-physics modeling, and advanced in-situ diagnostics, this review establishes a framework for understanding defect formation and its influence on process-structure-property relationships. The insights provided address current limitations in defect modeling and control, guiding future research toward achieving higher repeatability and scalability in industrial applications.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 3","pages":"565 - 597"},"PeriodicalIF":3.9,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced 3D Fourier ptychography with light field microscopy and neural network-driven coded illumination","authors":"Wen-Qi Shi,&nbsp;Hong-Da Quan,&nbsp;Ling-Bao Kong","doi":"10.1007/s40436-025-00586-5","DOIUrl":"10.1007/s40436-025-00586-5","url":null,"abstract":"<div><p>The trade-off between resolution and the number of measurements, along with the time-consuming and memory-intensive demands of traditional Fourier ptychography (FP) systems, has long posed challenges for the efficient and widespread application of this highly scalable quantitative phase imaging (QPI) technique. While recent approaches aim to improve imaging speed and reduce data sampling, they often struggle to maintain a high resolution. This is particularly true for images of thick samples. Consequently, these methods typically fail to simultaneously achieve reduced data sampling and high-resolution measurements. In this study, a resolution and efficiency enhancement scheme is introduced that integrates Fourier light-field microscopy (FLFM), FP, and multi-slice neural network (MSNN) to overcome these limitations. This system significantly reduces the amount of image data required for rapid three-dimensional (3D) imaging while preserving lateral measurement accuracy by replacing traditional microscopes with FLFM and incorporating encoded multiplexed illumination and aperture synthesis from FP. The refocusing capability of FLFM combined with an MSNN improves the vertical resolution, enabling more effective imaging of thick samples. This FLFM-based FP imaging system achieves a six-fold increase in data acquisition speed and a two-fold resolution improvement in both the lateral and longitudinal directions, compared to those of traditional FP systems. These improvements enable faster and more precise acquisition of structural information, particularly for thick samples. This study offers a practical and cost-effective solution to the limitations of traditional FP systems by providing a superior 3D measurement approach.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 3","pages":"548 - 564"},"PeriodicalIF":3.9,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Finishing path planning of Nomex honeycomb core via ultrasonic cutting","authors":"Heng Luo,&nbsp;Zhi-Gang Dong,&nbsp;Yan Qin,&nbsp;Ren-Ke Kang,&nbsp;Yi-Dan Wang","doi":"10.1007/s40436-025-00583-8","DOIUrl":"10.1007/s40436-025-00583-8","url":null,"abstract":"<div><p>Ultrasonic cutting is an advanced machining technology applied to Nomex honeycomb cores. However, during the finishing process, machining errors exceeding the allowable tolerances occur owing to the lack of an effective path planning method. This study addresses this issue by examining tool path planning for finishing off various typical honeycomb core features. Initially, a theoretical and experimental comparison of the residual heights of the honeycomb core plane features revealed that machining accuracy was superior along the double-wall direction to that along the perpendicular double-wall direction. Thereafter, the theoretical model of the plane features was used to predict the residual heights of the lead angle in the range of 0°–0.5° along the double-wall direction. In addition, theoretical models for residual height were derived for convex and concave surface features using transverse and longitudinal cutting methods, respectively. This study introduces algorithms for tool interference checking and tool posture adjustment to determine the critical lead angle preventing interference. By integrating these algorithms, a honeycomb core finishing path planning processor was developed on the MATLAB platform. Finally, simulations of the solid model were performed using VERICUT software to verify the feasibility of the proposed algorithms. Actual machining of honeycomb core feature parts demonstrated that the developed finishing processor had the ability to achieve high-precision results.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 3","pages":"711 - 729"},"PeriodicalIF":3.9,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lossless compression and recovery of locally dense sparse photomasks for ultraviolet lithography","authors":"Ming-Yu Gao,&nbsp;Jing-Hua Xu,&nbsp;Shu-You Zhang,&nbsp;Jian-Rong Tan","doi":"10.1007/s40436-025-00577-6","DOIUrl":"10.1007/s40436-025-00577-6","url":null,"abstract":"<div><p>This paper presents a lossless compression and recovery method for locally dense sparse photomask (LDSP) for ultraviolet lithography using irregular block-compressed row storage (IBCRS), which achieves an equilibrium reinforcement design for both storage amount and storage space. According to Moore’s Law, in laser three dimension printing (3DP), as well as in the semiconductor and chip manufacturing fields, the fabrication resolution is continuously refined for ultra-high-resolution manufacturing of complex curved surface components, resulting in an exponential increase in the generated metadata in terms of storage amount and storage space. As the first step, a photomask, which is a large-scale sparse matrix (LSM), is generated from variously sized irregular 3D manifolds using adaptive multilayer slicing strategies. Based on the typical lossless block compressed row storage (BCRS) method, irregular rules are proposed to tackle LSM, whose domain is locally dense via a neighborhood topology. The Hough transform of LSM was employed to determine the optimal transpose for the IBCRS. Using the IBCRS, the photomask of the LSM can be converted into lossless equivalent vectors. Large-scale matrix computations can be directly performed using compressed vectors. Original native photomasks can be recovered or reconstructed solely from compression vectors. The numerical example proves that in terms of the storage amount, which reflects the time complexity of the algorithm, the proposed IBCRS method performs better than the BCRS. Finally, a physical experiment was conducted to validate the IBCRS via the digital light processing (DLP) technique. The experimental results proved that the IBCRS had important applications in manufacturing variable-size devices with high precision, on the millimeter, micron, nano, and even atomic scales, by image-like lossless compression in the case of wireless encryption for space 3D printing, extremely high resolution manufacturing, etc.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 3","pages":"529 - 547"},"PeriodicalIF":3.9,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Divorced eutectic microstructural NiTiNb shape memory alloy with high recovery rate and recovery stress prepared by laser powder bed fusion","authors":"Mei-Li Hou,&nbsp;Zhi-Wei Yang,&nbsp;Xin Liu,&nbsp;Jing-Chao Yang,&nbsp;Bao-Hui Zhu,&nbsp;Xin Lin,&nbsp;Heng Li","doi":"10.1007/s40436-025-00582-9","DOIUrl":"10.1007/s40436-025-00582-9","url":null,"abstract":"<div><p>NiTiNb is a wide-hysteresis shape memory alloy (SMA) with great application potential in many industries, such as the aerospace and biomedical fields. However, a series of hot working processes, from casting to subsequent hot working processes, such as forging, heat treatment, and machining, are required owing to the limitations of long cycles, high energy consumption, and limited product structure. Meanwhile, during traditional equilibrium solidification, many eutectic structures composed of matrix and <i>β</i>-Nb phase are formed. The plastic deformation of the large <i>β</i>-Nb phase in the eutectic region may seriously deteriorate the shape memory performance. However, the eutectic structure is inherited, and its influence on shape memory properties cannot be eliminated by subsequent traditional hot workings. In this study, considering non-equilibrium solidification in 3D printing, laser powder bed fusion (LPBF) was attempted to rapidly fabricate NiTiNb alloys. Excellent shape memory performance with a divorced eutectic structure could be tailored using suitable LPBF parameters. It was observed that, in terms of the recovery rate, recovery stress, and thermomechanical cycle stability, the LPBF-NiTiNb alloys were superior to the traditional cast, forged, and extruded NiTiNb alloys. The recovery rate of the LPBF-NiTiNb alloy after 6% pre-strain at low temperatures reached approximately 98.8%, which was 21.5% higher than that of the as-cast alloy. The maximum recovery stress of LPBF-NiTiNb alloy reached 420 MPa, which was 55.9% and 15.4% higher than traditional forged and extruded alloys, respectively. The improved shape memory performance was essentially caused by the solidification difference between the non-equilibrium rapidly solidifying additive alloys and equilibrium solidifying as-cast alloys. To reduce costs and shorten fabrication processes using additive manufacturing, this finding provides a new perspective for tailoring the microstructure and improving the shape memory performance of NiTiNb alloys.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 3","pages":"639 - 658"},"PeriodicalIF":3.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-damage bone cutting using a newly developed rotary ultrasonic surgical handpiece","authors":"Xiao-Fei Song,&nbsp;Hai-Bo Jing,&nbsp;Pei-Yue Sun,&nbsp;Jia-Qi Zhao,&nbsp;Ling Yin","doi":"10.1007/s40436-025-00576-7","DOIUrl":"10.1007/s40436-025-00576-7","url":null,"abstract":"<div><p>Bone cutting is a common procedure in surgery, during which conventional rotary cutting causes extensive damage to the bone while single ultrasonic cutting, as a newer tool, results in minimally invasive injury but has obviously low efficiency. This study aimed to achieve low-damage, high-efficiency bone cutting using a newly developed surgical rotary ultrasonic (RU) handpiece coupled with ultrasonic vibration and rotary cutting. To solve the clinical miniature size and power limits, a quarter-wave barbell ultrasonic horn with a mid-reduction structure was designed based on the vibration theory. It enhanced the vibration amplitude output by 22% compared with a common stepped horn. A new non-contact rotary transformer with “T+U” shaped cores was developed with a higher coupling coefficient of 0.95 and transmission efficiency of 94% compared with common industrial transformers. Handpiece performance was evaluated in terms of vibration responses and cutting characteristics during cortical bone cutting. The results demonstrated that the new tool had good vibration characteristics with the expected amplitude and frequency, even at a low power of approximately 1 W, which was less than 1/100 of that used in industrial RU tools. Compared with conventional rotary cutting, the new tool significantly reduced cutting forces by 32%–44% without losing cutting efficiency and diminished surface chipping damage in the bone, which was especially important for low-trauma surgery. This study advances the bone cutting processes for high-quality surgery by developing a new RU surgical tool.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 3","pages":"697 - 710"},"PeriodicalIF":3.9,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Holistic high-temperature assistance for laser directed energy deposition of Al2O3/ZrO2 eutectic ceramics: cracking behavior","authors":"Dong-Jiang Wu,&nbsp;Cheng-Xin Li,&nbsp;Ming-Ze Xu,&nbsp;Xue-Xin Yu,&nbsp;Guang-Yi Ma,&nbsp;Huan-Yue Zhang,&nbsp;Cong Zhou,&nbsp;Bi Zhang,&nbsp;Fang-Yong Niu","doi":"10.1007/s40436-025-00572-x","DOIUrl":"10.1007/s40436-025-00572-x","url":null,"abstract":"<div><p>Laser-directed energy deposition (LDED) has emerged as a primary technology for the direct additive manufacturing of melt-growth ceramics (MGCs). However, cracking during fabrication severely limits further development of this technology. This study investigated a new holistic high-temperature-assisted method for LDED to solve the cracking problem. This method mitigates the high temperature gradients caused by the low thermal conductivity of the material during fabrication, thereby suppressing crack formation. The LDED of Al₂O₃/ZrO₂ eutectic ceramics was performed at a holistic auxiliary temperature of up to 1 273 K, and the crack-suppressing effectiveness and mechanism were verified by combining numerical simulations and experiments. The results demonstrated that holistic high-temperature assistance significantly mitigated cracking in Al₂O₃/ZrO₂ eutectic ceramics fabricated via LDED. At an auxiliary temperature of 1 273 K, the stress level in the fabricated sample was reduced by an order of magnitude compared to that at room temperature. Consequently, the lengths and densities of the cracks in the fabricated samples decreased by 47.6% and 55.6%, respectively. This study confirmed that the holistic high-temperature-assisted LDED method could play an important role in the additive manufacturing of low-ductility materials.</p></div>","PeriodicalId":7342,"journal":{"name":"Advances in Manufacturing","volume":"14 2","pages":"474 - 498"},"PeriodicalIF":3.8,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}